package com.example.singleton;

public class Singleton3 {

    private static volatile Singleton3 instance;

    private Singleton3(){

    }

    public static Singleton3 getInstance(){
        if (instance == null){
            synchronized (Singleton3.class){
                if (instance == null){
                    instance = new Singleton3();
                }
            }
        }
        return instance;
    }
}
